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Commit 282855e9 authored by unknown's avatar unknown
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Merge bk-internal:/home/bk/mysql-5.1 

into  mysql.com:/home/jimw/my/mysql-5.1-clean
parents 7382cc71 3324dd82
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Showing with 425 additions and 215 deletions
client/mysqltest.c
View file @ 282855e9
...@@ -3056,12 +3056,6 @@ static int run_query_normal(MYSQL* mysql, struct st_query* q, int flags) ...@@ -3056,12 +3056,6 @@ static int run_query_normal(MYSQL* mysql, struct st_query* q, int flags)
goto end; goto end;
} }
if (handle_no_error(q))
{
error= 1;
goto end;
}
if (!disable_result_log) if (!disable_result_log)
{ {
ulong affected_rows; /* Ok to be undef if 'disable_info' is set */ ulong affected_rows; /* Ok to be undef if 'disable_info' is set */
...@@ -3106,12 +3100,9 @@ static int run_query_normal(MYSQL* mysql, struct st_query* q, int flags) ...@@ -3106,12 +3100,9 @@ static int run_query_normal(MYSQL* mysql, struct st_query* q, int flags)
MYSQL_RES *warn_res=0; MYSQL_RES *warn_res=0;
uint count= mysql_warning_count(mysql); uint count= mysql_warning_count(mysql);
if (!mysql_real_query(mysql, "SHOW WARNINGS", 13)) if (!mysql_real_query(mysql, "SHOW WARNINGS", 13))
{
warn_res= mysql_store_result(mysql); warn_res= mysql_store_result(mysql);
}
if (!warn_res) if (!warn_res)
verbose_msg("Warning count is %u but didn't get any warnings", die("Warning count is %u but didn't get any warnings", count);
count);
else else
{ {
dynstr_append_mem(ds, "Warnings:\n", 10); dynstr_append_mem(ds, "Warnings:\n", 10);
...@@ -3142,15 +3133,28 @@ static int run_query_normal(MYSQL* mysql, struct st_query* q, int flags) ...@@ -3142,15 +3133,28 @@ static int run_query_normal(MYSQL* mysql, struct st_query* q, int flags)
} }
else if (q->record_file[0]) else if (q->record_file[0])
{ {
error = check_result(ds, q->record_file, q->require_file); error= check_result(ds, q->record_file, q->require_file);
} }
if (res) if (res)
mysql_free_result(res); mysql_free_result(res);
last_result= 0; last_result= 0;
counter++; counter++;
} while (!(err= mysql_next_result(mysql))); } while (!(err= mysql_next_result(mysql)));
if (err >= 1) if (err > 0)
mysql_error(mysql); {
/* We got an error from mysql_next_result, maybe expected */
if (handle_error(query, q, mysql_errno(mysql), mysql_error(mysql),
mysql_sqlstate(mysql), ds))
error= 1;
goto end;
}
// If we come here the query is both executed and read successfully
if (handle_no_error(q))
{
error= 1;
goto end;
}
end: end:
free_replace(); free_replace();
...@@ -3203,8 +3207,7 @@ static int handle_error(const char *query, struct st_query *q, ...@@ -3203,8 +3207,7 @@ static int handle_error(const char *query, struct st_query *q,
abort_not_supported_test(); abort_not_supported_test();
if (q->abort_on_error) if (q->abort_on_error)
die("query '%s' failed: %d: %s", query, die("query '%s' failed: %d: %s", query, err_errno, err_error);
err_errno, err_error);
for (i= 0 ; (uint) i < q->expected_errors ; i++) for (i= 0 ; (uint) i < q->expected_errors ; i++)
{ {
...@@ -3243,13 +3246,11 @@ static int handle_error(const char *query, struct st_query *q, ...@@ -3243,13 +3246,11 @@ static int handle_error(const char *query, struct st_query *q,
if (i) if (i)
{ {
if (q->expected_errno[0].type == ERR_ERRNO) if (q->expected_errno[0].type == ERR_ERRNO)
verbose_msg("query '%s' failed with wrong errno %d instead of %d...", die("query '%s' failed with wrong errno %d instead of %d...",
q->query, err_errno, q->query, err_errno, q->expected_errno[0].code.errnum);
q->expected_errno[0].code.errnum);
else else
verbose_msg("query '%s' failed with wrong sqlstate %s instead of %s...", die("query '%s' failed with wrong sqlstate %s instead of %s...",
q->query, err_sqlstate, q->query, err_sqlstate, q->expected_errno[0].code.sqlstate);
q->expected_errno[0].code.sqlstate);
DBUG_RETURN(1); DBUG_RETURN(1);
} }
...@@ -3283,16 +3284,16 @@ static int handle_no_error(struct st_query *q) ...@@ -3283,16 +3284,16 @@ static int handle_no_error(struct st_query *q)
q->expected_errno[0].code.errnum != 0) q->expected_errno[0].code.errnum != 0)
{ {
/* Error code we wanted was != 0, i.e. not an expected success */ /* Error code we wanted was != 0, i.e. not an expected success */
verbose_msg("query '%s' succeeded - should have failed with errno %d...", die("query '%s' succeeded - should have failed with errno %d...",
q->query, q->expected_errno[0].code.errnum); q->query, q->expected_errno[0].code.errnum);
DBUG_RETURN(1); DBUG_RETURN(1);
} }
else if (q->expected_errno[0].type == ERR_SQLSTATE && else if (q->expected_errno[0].type == ERR_SQLSTATE &&
strcmp(q->expected_errno[0].code.sqlstate,"00000") != 0) strcmp(q->expected_errno[0].code.sqlstate,"00000") != 0)
{ {
/* SQLSTATE we wanted was != "00000", i.e. not an expected success */ /* SQLSTATE we wanted was != "00000", i.e. not an expected success */
verbose_msg("query '%s' succeeded - should have failed with sqlstate %s...", die("query '%s' succeeded - should have failed with sqlstate %s...",
q->query, q->expected_errno[0].code.sqlstate); q->query, q->expected_errno[0].code.sqlstate);
DBUG_RETURN(1); DBUG_RETURN(1);
} }
...@@ -3312,7 +3313,7 @@ static int run_query_stmt(MYSQL *mysql, struct st_query *q, int flags) ...@@ -3312,7 +3313,7 @@ static int run_query_stmt(MYSQL *mysql, struct st_query *q, int flags)
{ {
int error= 0; /* Function return code if "goto end;" */ int error= 0; /* Function return code if "goto end;" */
int err; /* Temporary storage of return code from calls */ int err; /* Temporary storage of return code from calls */
int query_len, got_error_on_execute; int query_len;
ulonglong num_rows; ulonglong num_rows;
char *query; char *query;
MYSQL_RES *res= NULL; /* Note that here 'res' is meta data result set */ MYSQL_RES *res= NULL; /* Note that here 'res' is meta data result set */
...@@ -3328,7 +3329,7 @@ static int run_query_stmt(MYSQL *mysql, struct st_query *q, int flags) ...@@ -3328,7 +3329,7 @@ static int run_query_stmt(MYSQL *mysql, struct st_query *q, int flags)
*/ */
if (!(stmt= mysql_stmt_init(mysql))) if (!(stmt= mysql_stmt_init(mysql)))
die("unable init stmt structure"); die("unable init stmt structure");
if (q->type != Q_EVAL) if (q->type != Q_EVAL)
{ {
query= q->query; query= q->query;
...@@ -3369,30 +3370,21 @@ static int run_query_stmt(MYSQL *mysql, struct st_query *q, int flags) ...@@ -3369,30 +3370,21 @@ static int run_query_stmt(MYSQL *mysql, struct st_query *q, int flags)
if (err != 0) if (err != 0)
{ {
if (q->abort_on_error) /*
{ Preparing is part of normal execution and some errors may be expected
die("query '%s' failed: %d: %s", query, */
mysql_stmt_errno(stmt), mysql_stmt_error(stmt)); if (handle_error(query, q, mysql_stmt_errno(stmt),
} mysql_stmt_error(stmt), mysql_stmt_sqlstate(stmt), ds))
else error= 1;
{ goto end;
/*
Preparing is part of normal execution and some errors may be expected
*/
error= handle_error(query, q, mysql_stmt_errno(stmt),
mysql_stmt_error(stmt), mysql_stmt_sqlstate(stmt),
ds);
goto end;
}
} }
/* We may have got warnings already, collect them if any */ /* We may have got warnings already, collect them if any */
/* FIXME we only want this if the statement succeeds I think */
if (!disable_ps_warnings) if (!disable_ps_warnings)
run_query_stmt_handle_warnings(mysql, ds); run_query_stmt_handle_warnings(mysql, ds);
/* /*
No need to call mysql_stmt_bind_param() because we have no No need to call mysql_stmt_bind_param() because we have no
parameter markers. parameter markers.
To optimize performance we use a global 'stmt' that is initiated To optimize performance we use a global 'stmt' that is initiated
...@@ -3401,24 +3393,13 @@ static int run_query_stmt(MYSQL *mysql, struct st_query *q, int flags) ...@@ -3401,24 +3393,13 @@ static int run_query_stmt(MYSQL *mysql, struct st_query *q, int flags)
prepared statement. prepared statement.
*/ */
if ((got_error_on_execute= mysql_stmt_execute(stmt)) != 0) /* 0 == Success */ if (mysql_stmt_execute(stmt) != 0) /* 0 == Success */
{ {
if (q->abort_on_error) /* We got an error, maybe expected */
{ if (handle_error(query, q, mysql_stmt_errno(stmt),
/* We got an error, unexpected */ mysql_stmt_error(stmt), mysql_stmt_sqlstate(stmt), ds))
die("unable to execute statement '%s': " error= 1;
"%s (mysql_stmt_errno=%d returned=%d)", goto end;
query, mysql_stmt_error(stmt),
mysql_stmt_errno(stmt), got_error_on_execute);
}
else
{
/* We got an error, maybe expected */
error= handle_error(query, q, mysql_stmt_errno(stmt),
mysql_stmt_error(stmt), mysql_stmt_sqlstate(stmt),
ds);
goto end;
}
} }
/* /*
...@@ -3428,11 +3409,10 @@ static int run_query_stmt(MYSQL *mysql, struct st_query *q, int flags) ...@@ -3428,11 +3409,10 @@ static int run_query_stmt(MYSQL *mysql, struct st_query *q, int flags)
*/ */
{ {
my_bool one= 1; my_bool one= 1;
if (mysql_stmt_attr_set(stmt, STMT_ATTR_UPDATE_MAX_LENGTH, if ((err= mysql_stmt_attr_set(stmt, STMT_ATTR_UPDATE_MAX_LENGTH,
(void*) &one) != 0) (void*) &one)) != 0)
die("unable to set stmt attribute " die("unable to set stmt attribute "
"'STMT_ATTR_UPDATE_MAX_LENGTH': %s (returned=%d)", "'STMT_ATTR_UPDATE_MAX_LENGTH' err: %d", err);
query, err);
} }
/* /*
...@@ -3441,22 +3421,11 @@ static int run_query_stmt(MYSQL *mysql, struct st_query *q, int flags) ...@@ -3441,22 +3421,11 @@ static int run_query_stmt(MYSQL *mysql, struct st_query *q, int flags)
*/ */
if ((err= mysql_stmt_store_result(stmt)) != 0) if ((err= mysql_stmt_store_result(stmt)) != 0)
{ {
if (q->abort_on_error) /* We got an error, maybe expected */
{ if(handle_error(query, q, mysql_stmt_errno(stmt),
/* We got an error, unexpected */ mysql_stmt_error(stmt), mysql_stmt_sqlstate(stmt), ds))
die("unable to execute statement '%s': " error = 1;
"%s (mysql_stmt_errno=%d returned=%d)", goto end;
query, mysql_stmt_error(stmt),
mysql_stmt_errno(stmt), got_error_on_execute);
}
else
{
/* We got an error, maybe expected */
error= handle_error(query, q, mysql_stmt_errno(stmt),
mysql_stmt_error(stmt), mysql_stmt_sqlstate(stmt),
ds);
goto end;
}
} }
/* If we got here the statement was both executed and read succeesfully */ /* If we got here the statement was both executed and read succeesfully */
...@@ -3480,8 +3449,6 @@ static int run_query_stmt(MYSQL *mysql, struct st_query *q, int flags) ...@@ -3480,8 +3449,6 @@ static int run_query_stmt(MYSQL *mysql, struct st_query *q, int flags)
MYSQL_FIELD *field= mysql_fetch_fields(res); MYSQL_FIELD *field= mysql_fetch_fields(res);
uint num_fields= mysql_num_fields(res); uint num_fields= mysql_num_fields(res);
/* FIXME check error from the above? */
if (display_metadata) if (display_metadata)
run_query_display_metadata(field, num_fields, ds); run_query_display_metadata(field, num_fields, ds);
...@@ -3634,9 +3601,6 @@ static int run_query_stmt(MYSQL *mysql, struct st_query *q, int flags) ...@@ -3634,9 +3601,6 @@ static int run_query_stmt(MYSQL *mysql, struct st_query *q, int flags)
mysql_free_result(res); /* Free normal result set with meta data */ mysql_free_result(res); /* Free normal result set with meta data */
last_result= 0; /* FIXME have no idea what this is about... */ last_result= 0; /* FIXME have no idea what this is about... */
if (err >= 1)
mysql_error(mysql); /* FIXME strange, has no effect... */
end: end:
free_replace(); free_replace();
last_result=0; last_result=0;
...@@ -3727,8 +3691,8 @@ static void run_query_stmt_handle_warnings(MYSQL *mysql, DYNAMIC_STRING *ds) ...@@ -3727,8 +3691,8 @@ static void run_query_stmt_handle_warnings(MYSQL *mysql, DYNAMIC_STRING *ds)
{ {
MYSQL_RES *warn_res= mysql_store_result(mysql); MYSQL_RES *warn_res= mysql_store_result(mysql);
if (!warn_res) if (!warn_res)
verbose_msg("Warning count is %u but didn't get any warnings", die("Warning count is %u but didn't get any warnings",
count); count);
else else
{ {
dynstr_append_mem(ds, "Warnings:\n", 10); dynstr_append_mem(ds, "Warnings:\n", 10);
......
mysql-test/r/mysqltest.result
View file @ 282855e9
...@@ -134,7 +134,6 @@ select 1146 as "after_!errno_masked_error" ; ...@@ -134,7 +134,6 @@ select 1146 as "after_!errno_masked_error" ;
after_!errno_masked_error after_!errno_masked_error
1146 1146
mysqltest: At line 1: query 'select 3 from t1' failed with wrong errno 1146 instead of 1000... mysqltest: At line 1: query 'select 3 from t1' failed with wrong errno 1146 instead of 1000...
mysqltest: At line 1: query 'select 3 from t1' failed with wrong errno 1146 instead of 1000...
garbage ; garbage ;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'garbage' at line 1 ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'garbage' at line 1
select 1064 as "after_--enable_abort_on_error" ; select 1064 as "after_--enable_abort_on_error" ;
...@@ -143,7 +142,6 @@ after_--enable_abort_on_error ...@@ -143,7 +142,6 @@ after_--enable_abort_on_error
select 3 from t1 ; select 3 from t1 ;
ERROR 42S02: Table 'test.t1' doesn't exist ERROR 42S02: Table 'test.t1' doesn't exist
mysqltest: At line 1: query 'select 3 from t1' failed with wrong errno 1146 instead of 1064... mysqltest: At line 1: query 'select 3 from t1' failed with wrong errno 1146 instead of 1064...
mysqltest: At line 1: query 'select 3 from t1' failed: 1146: Table 'test.t1' doesn't exist
hello hello
hello hello
;;;;;;;; ;;;;;;;;
......
mysql-test/r/query_cache.result
View file @ 282855e9
...@@ -1057,42 +1057,64 @@ create table t1 (s1 int)// ...@@ -1057,42 +1057,64 @@ create table t1 (s1 int)//
create procedure f1 () begin create procedure f1 () begin
select sql_cache * from t1; select sql_cache * from t1;
select sql_cache * from t1; select sql_cache * from t1;
select sql_cache * from t1;
end;//
create procedure f2 () begin
select sql_cache * from t1 where s1=1;
select sql_cache * from t1;
end;//
create procedure f3 () begin
select sql_cache * from t1;
select sql_cache * from t1 where s1=1;
end;//
create procedure f4 () begin
select sql_cache * from t1;
select sql_cache * from t1 where s1=1;
select sql_cache * from t1;
select sql_cache * from t1 where s1=1;
select sql_cache * from t1 where s1=1;
end;// end;//
call f1(); call f1();
s1 s1
s1
s1
show status like "Qcache_queries_in_cache"; show status like "Qcache_queries_in_cache";
Variable_name Value Variable_name Value
Qcache_queries_in_cache 1 Qcache_queries_in_cache 3
show status like "Qcache_inserts"; show status like "Qcache_inserts";
Variable_name Value Variable_name Value
Qcache_inserts 1 Qcache_inserts 3
show status like "Qcache_hits"; show status like "Qcache_hits";
Variable_name Value Variable_name Value
Qcache_hits 1 Qcache_hits 0
call f1(); call f1();
s1 s1
s1
s1
show status like "Qcache_queries_in_cache"; show status like "Qcache_queries_in_cache";
Variable_name Value Variable_name Value
Qcache_queries_in_cache 1 Qcache_queries_in_cache 3
show status like "Qcache_inserts"; show status like "Qcache_inserts";
Variable_name Value Variable_name Value
Qcache_inserts 1 Qcache_inserts 3
show status like "Qcache_hits"; show status like "Qcache_hits";
Variable_name Value Variable_name Value
Qcache_hits 3 Qcache_hits 3
call f1(); call f1();
s1 s1
s1
s1
select sql_cache * from t1; select sql_cache * from t1;
s1 s1
show status like "Qcache_queries_in_cache"; show status like "Qcache_queries_in_cache";
Variable_name Value Variable_name Value
Qcache_queries_in_cache 2 Qcache_queries_in_cache 4
show status like "Qcache_inserts"; show status like "Qcache_inserts";
Variable_name Value Variable_name Value
Qcache_inserts 2 Qcache_inserts 4
show status like "Qcache_hits"; show status like "Qcache_hits";
Variable_name Value Variable_name Value
Qcache_hits 5 Qcache_hits 6
insert into t1 values (1); insert into t1 values (1);
select sql_cache * from t1; select sql_cache * from t1;
s1 s1
...@@ -1102,28 +1124,150 @@ Variable_name Value ...@@ -1102,28 +1124,150 @@ Variable_name Value
Qcache_queries_in_cache 1 Qcache_queries_in_cache 1
show status like "Qcache_inserts"; show status like "Qcache_inserts";
Variable_name Value Variable_name Value
Qcache_inserts 3 Qcache_inserts 5
show status like "Qcache_hits"; show status like "Qcache_hits";
Variable_name Value Variable_name Value
Qcache_hits 5 Qcache_hits 6
call f1(); call f1();
s1 s1
1 1
s1
1
s1
1
call f1(); call f1();
s1 s1
1 1
s1
1
s1
1
select sql_cache * from t1; select sql_cache * from t1;
s1 s1
1 1
show status like "Qcache_queries_in_cache"; show status like "Qcache_queries_in_cache";
Variable_name Value Variable_name Value
Qcache_queries_in_cache 2 Qcache_queries_in_cache 4
show status like "Qcache_inserts"; show status like "Qcache_inserts";
Variable_name Value Variable_name Value
Qcache_inserts 4 Qcache_inserts 8
show status like "Qcache_hits"; show status like "Qcache_hits";
Variable_name Value Variable_name Value
Qcache_hits 9 Qcache_hits 10
flush query cache;
reset query cache;
flush status;
select sql_cache * from t1;
s1
1
select sql_cache * from t1 where s1=1;
s1
1
call f1();
s1
1
s1
1
s1
1
call f2();
s1
1
s1
1
call f3();
s1
1
s1
1
call f4();
s1
1
s1
1
s1
1
s1
1
s1
1
call f4();
s1
1
s1
1
s1
1
s1
1
s1
1
call f3();
s1
1
s1
1
call f2();
s1
1
s1
1
select sql_cache * from t1 where s1=1;
s1
1
insert into t1 values (2);
call f1();
s1
1
2
s1
1
2
s1
1
2
select sql_cache * from t1 where s1=1;
s1
1
select sql_cache * from t1;
s1
1
2
call f1();
s1
1
2
s1
1
2
s1
1
2
call f3();
s1
1
2
s1
1
call f3();
s1
1
2
s1
1
call f1();
s1
1
2
s1
1
2
s1
1
2
drop procedure f1; drop procedure f1;
drop procedure f2;
drop procedure f3;
drop procedure f4;
drop table t1; drop table t1;
set GLOBAL query_cache_size=0; set GLOBAL query_cache_size=0;
mysql-test/r/sp-error.result
View file @ 282855e9
...@@ -692,6 +692,7 @@ END P1| ...@@ -692,6 +692,7 @@ END P1|
call SP001(); call SP001();
TEMP_SUM TEMP_SUM
0 0
ERROR 24000: Cursor is not open
drop procedure SP001; drop procedure SP001;
drop table t1, t2; drop table t1, t2;
drop function if exists bug11394| drop function if exists bug11394|
......
mysql-test/t/query_cache.test
View file @ 282855e9
...@@ -776,6 +776,7 @@ delimiter ;// ...@@ -776,6 +776,7 @@ delimiter ;//
# #
# query in QC from normal execution and SP (BUG#6897) # query in QC from normal execution and SP (BUG#6897)
# improved to also test BUG#3583 and BUG#12990
# #
flush query cache; flush query cache;
reset query cache; reset query cache;
...@@ -785,6 +786,22 @@ create table t1 (s1 int)// ...@@ -785,6 +786,22 @@ create table t1 (s1 int)//
create procedure f1 () begin create procedure f1 () begin
select sql_cache * from t1; select sql_cache * from t1;
select sql_cache * from t1; select sql_cache * from t1;
select sql_cache * from t1;
end;//
create procedure f2 () begin
select sql_cache * from t1 where s1=1;
select sql_cache * from t1;
end;//
create procedure f3 () begin
select sql_cache * from t1;
select sql_cache * from t1 where s1=1;
end;//
create procedure f4 () begin
select sql_cache * from t1;
select sql_cache * from t1 where s1=1;
select sql_cache * from t1;
select sql_cache * from t1 where s1=1;
select sql_cache * from t1 where s1=1;
end;// end;//
delimiter ;// delimiter ;//
call f1(); call f1();
...@@ -811,7 +828,32 @@ select sql_cache * from t1; ...@@ -811,7 +828,32 @@ select sql_cache * from t1;
show status like "Qcache_queries_in_cache"; show status like "Qcache_queries_in_cache";
show status like "Qcache_inserts"; show status like "Qcache_inserts";
show status like "Qcache_hits"; show status like "Qcache_hits";
flush query cache;
reset query cache;
flush status;
select sql_cache * from t1;
select sql_cache * from t1 where s1=1;
call f1();
call f2();
call f3();
call f4();
call f4();
call f3();
call f2();
select sql_cache * from t1 where s1=1;
insert into t1 values (2);
call f1();
select sql_cache * from t1 where s1=1;
select sql_cache * from t1;
call f1();
call f3();
call f3();
call f1();
drop procedure f1; drop procedure f1;
drop procedure f2;
drop procedure f3;
drop procedure f4;
drop table t1; drop table t1;
set GLOBAL query_cache_size=0; set GLOBAL query_cache_size=0;
......
mysql-test/t/sp-error.test
View file @ 282855e9
...@@ -991,6 +991,7 @@ P1: BEGIN ...@@ -991,6 +991,7 @@ P1: BEGIN
SELECT 'end of proc'; SELECT 'end of proc';
END P1| END P1|
delimiter ;| delimiter ;|
--error 1326
call SP001(); call SP001();
drop procedure SP001; drop procedure SP001;
drop table t1, t2; drop table t1, t2;
...@@ -1187,7 +1188,30 @@ delimiter ;| ...@@ -1187,7 +1188,30 @@ delimiter ;|
create trigger bug12712 create trigger bug12712
before insert on t1 for each row set session autocommit = 0; before insert on t1 for each row set session autocommit = 0;
#
# BUG#9367: Stored procedures: client hang after "show warnings"
#
--disable_parsing
--disable_warnings
drop procedure if exists bug9367;
--enable_warnings
create table t1 (s1 int);
select s1 from t1;
delimiter |;
create procedure bug9367()
begin
declare v int;
declare c cursor for select s1 from t1;
open c;
show warnings;
fetch c into v;
select v;
end|
delimiter ;|
call bug9367();
drop procedure bug9367;
drop table t1;
--enable_parsing
# #
# BUG#NNNN: New bug synopsis # BUG#NNNN: New bug synopsis
# #
......
sql/examples/ha_tina.cc
View file @ 282855e9
...@@ -17,18 +17,22 @@ ...@@ -17,18 +17,22 @@
/* /*
Make sure to look at ha_tina.h for more details. Make sure to look at ha_tina.h for more details.
First off, this is a play thing for me, there are a number of things wrong with it: First off, this is a play thing for me, there are a number of things
*) It was designed for csv and therefor its performance is highly questionable. wrong with it:
*) Indexes have not been implemented. This is because the files can be traded in *) It was designed for csv and therefore its performance is highly
and out of the table directory without having to worry about rebuilding anything. questionable.
*) NULLs and "" are treated equally (like a spreadsheet). *) Indexes have not been implemented. This is because the files can
*) There was in the beginning no point to anyone seeing this other then me, so there be traded in and out of the table directory without having to worry
is a good chance that I haven't quite documented it well. about rebuilding anything.
*) Less design, more "make it work" *) NULLs and "" are treated equally (like a spreadsheet).
*) There was in the beginning no point to anyone seeing this other
Now there are a few cool things with it: then me, so there is a good chance that I haven't quite documented
*) Errors can result in corrupted data files. it well.
*) Data files can be read by spreadsheets directly. *) Less design, more "make it work"
Now there are a few cool things with it:
*) Errors can result in corrupted data files.
*) Data files can be read by spreadsheets directly.
TODO: TODO:
*) Move to a block system for larger files *) Move to a block system for larger files
...@@ -78,7 +82,7 @@ static handlerton tina_hton= { ...@@ -78,7 +82,7 @@ static handlerton tina_hton= {
** TINA tables ** TINA tables
*****************************************************************************/ *****************************************************************************/
/* /*
Used for sorting chains. Used for sorting chains.
*/ */
int sort_set (tina_set *a, tina_set *b) int sort_set (tina_set *a, tina_set *b)
...@@ -106,7 +110,7 @@ int get_mmap(TINA_SHARE *share, int write) ...@@ -106,7 +110,7 @@ int get_mmap(TINA_SHARE *share, int write)
if (my_fstat(share->data_file, &share->file_stat, MYF(MY_WME)) == -1) if (my_fstat(share->data_file, &share->file_stat, MYF(MY_WME)) == -1)
DBUG_RETURN(1); DBUG_RETURN(1);
if (share->file_stat.st_size) if (share->file_stat.st_size)
{ {
if (write) if (write)
share->mapped_file= (byte *)my_mmap(NULL, share->file_stat.st_size, share->mapped_file= (byte *)my_mmap(NULL, share->file_stat.st_size,
...@@ -116,7 +120,7 @@ int get_mmap(TINA_SHARE *share, int write) ...@@ -116,7 +120,7 @@ int get_mmap(TINA_SHARE *share, int write)
share->mapped_file= (byte *)my_mmap(NULL, share->file_stat.st_size, share->mapped_file= (byte *)my_mmap(NULL, share->file_stat.st_size,
PROT_READ, MAP_PRIVATE, PROT_READ, MAP_PRIVATE,
share->data_file, 0); share->data_file, 0);
if ((share->mapped_file ==(caddr_t)-1)) if ((share->mapped_file ==(caddr_t)-1))
{ {
/* /*
Bad idea you think? See the problem is that nothing actually checks Bad idea you think? See the problem is that nothing actually checks
...@@ -129,7 +133,7 @@ int get_mmap(TINA_SHARE *share, int write) ...@@ -129,7 +133,7 @@ int get_mmap(TINA_SHARE *share, int write)
DBUG_RETURN(1); DBUG_RETURN(1);
} }
} }
else else
share->mapped_file= NULL; share->mapped_file= NULL;
DBUG_RETURN(0); DBUG_RETURN(0);
...@@ -167,17 +171,18 @@ static TINA_SHARE *get_share(const char *table_name, TABLE *table) ...@@ -167,17 +171,18 @@ static TINA_SHARE *get_share(const char *table_name, TABLE *table)
if (!my_multi_malloc(MYF(MY_WME | MY_ZEROFILL), if (!my_multi_malloc(MYF(MY_WME | MY_ZEROFILL),
&share, sizeof(*share), &share, sizeof(*share),
&tmp_name, length+1, &tmp_name, length+1,
NullS)) NullS))
{ {
pthread_mutex_unlock(&tina_mutex); pthread_mutex_unlock(&tina_mutex);
return NULL; return NULL;
} }
share->use_count=0; share->use_count= 0;
share->table_name_length=length; share->table_name_length= length;
share->table_name=tmp_name; share->table_name= tmp_name;
strmov(share->table_name,table_name); strmov(share->table_name, table_name);
fn_format(data_file_name, table_name, "", ".CSV",MY_REPLACE_EXT|MY_UNPACK_FILENAME); fn_format(data_file_name, table_name, "", ".CSV",
MY_REPLACE_EXT|MY_UNPACK_FILENAME);
if (my_hash_insert(&tina_open_tables, (byte*) share)) if (my_hash_insert(&tina_open_tables, (byte*) share))
goto error; goto error;
thr_lock_init(&share->lock); thr_lock_init(&share->lock);
...@@ -186,11 +191,14 @@ static TINA_SHARE *get_share(const char *table_name, TABLE *table) ...@@ -186,11 +191,14 @@ static TINA_SHARE *get_share(const char *table_name, TABLE *table)
if ((share->data_file= my_open(data_file_name, O_RDWR, MYF(0))) == -1) if ((share->data_file= my_open(data_file_name, O_RDWR, MYF(0))) == -1)
goto error2; goto error2;
/* We only use share->data_file for writing, so we scan to the end to append */ /*
We only use share->data_file for writing, so we scan to
the end to append
*/
if (my_seek(share->data_file, 0, SEEK_END, MYF(0)) == MY_FILEPOS_ERROR) if (my_seek(share->data_file, 0, SEEK_END, MYF(0)) == MY_FILEPOS_ERROR)
goto error2; goto error2;
share->mapped_file= NULL; // We don't know the state since we just allocated it share->mapped_file= NULL; // We don't know the state as we just allocated it
if (get_mmap(share, 0) > 0) if (get_mmap(share, 0) > 0)
goto error3; goto error3;
} }
...@@ -212,7 +220,7 @@ static TINA_SHARE *get_share(const char *table_name, TABLE *table) ...@@ -212,7 +220,7 @@ static TINA_SHARE *get_share(const char *table_name, TABLE *table)
} }
/* /*
Free lock controls. Free lock controls.
*/ */
static int free_share(TINA_SHARE *share) static int free_share(TINA_SHARE *share)
...@@ -222,7 +230,7 @@ static int free_share(TINA_SHARE *share) ...@@ -222,7 +230,7 @@ static int free_share(TINA_SHARE *share)
int result_code= 0; int result_code= 0;
if (!--share->use_count){ if (!--share->use_count){
/* Drop the mapped file */ /* Drop the mapped file */
if (share->mapped_file) if (share->mapped_file)
my_munmap(share->mapped_file, share->file_stat.st_size); my_munmap(share->mapped_file, share->file_stat.st_size);
result_code= my_close(share->data_file,MYF(0)); result_code= my_close(share->data_file,MYF(0));
hash_delete(&tina_open_tables, (byte*) share); hash_delete(&tina_open_tables, (byte*) share);
...@@ -236,13 +244,13 @@ static int free_share(TINA_SHARE *share) ...@@ -236,13 +244,13 @@ static int free_share(TINA_SHARE *share)
} }
/* /*
Finds the end of a line. Finds the end of a line.
Currently only supports files written on a UNIX OS. Currently only supports files written on a UNIX OS.
*/ */
byte * find_eoln(byte *data, off_t begin, off_t end) byte * find_eoln(byte *data, off_t begin, off_t end)
{ {
for (off_t x= begin; x < end; x++) for (off_t x= begin; x < end; x++)
if (data[x] == '\n') if (data[x] == '\n')
return data + x; return data + x;
...@@ -256,7 +264,8 @@ ha_tina::ha_tina(TABLE *table_arg) ...@@ -256,7 +264,8 @@ ha_tina::ha_tina(TABLE *table_arg)
These definitions are found in hanler.h These definitions are found in hanler.h
These are not probably completely right. These are not probably completely right.
*/ */
current_position(0), next_position(0), chain_alloced(0), chain_size(DEFAULT_CHAIN_LENGTH) current_position(0), next_position(0), chain_alloced(0),
chain_size(DEFAULT_CHAIN_LENGTH)
{ {
/* Set our original buffers from pre-allocated memory */ /* Set our original buffers from pre-allocated memory */
buffer.set(byte_buffer, IO_SIZE, system_charset_info); buffer.set(byte_buffer, IO_SIZE, system_charset_info);
...@@ -266,7 +275,7 @@ ha_tina::ha_tina(TABLE *table_arg) ...@@ -266,7 +275,7 @@ ha_tina::ha_tina(TABLE *table_arg)
/* /*
Encode a buffer into the quoted format. Encode a buffer into the quoted format.
*/ */
int ha_tina::encode_quote(byte *buf) int ha_tina::encode_quote(byte *buf)
{ {
char attribute_buffer[1024]; char attribute_buffer[1024];
String attribute(attribute_buffer, sizeof(attribute_buffer), &my_charset_bin); String attribute(attribute_buffer, sizeof(attribute_buffer), &my_charset_bin);
...@@ -324,13 +333,15 @@ int ha_tina::encode_quote(byte *buf) ...@@ -324,13 +333,15 @@ int ha_tina::encode_quote(byte *buf)
} }
/* /*
chain_append() adds delete positions to the chain that we use to keep track of space. chain_append() adds delete positions to the chain that we use to keep
track of space. Then the chain will be used to cleanup "holes", occured
due to deletes and updates.
*/ */
int ha_tina::chain_append() int ha_tina::chain_append()
{ {
if ( chain_ptr != chain && (chain_ptr -1)->end == current_position) if ( chain_ptr != chain && (chain_ptr -1)->end == current_position)
(chain_ptr -1)->end= next_position; (chain_ptr -1)->end= next_position;
else else
{ {
/* We set up for the next position */ /* We set up for the next position */
if ((off_t)(chain_ptr - chain) == (chain_size -1)) if ((off_t)(chain_ptr - chain) == (chain_size -1))
...@@ -340,12 +351,14 @@ int ha_tina::chain_append() ...@@ -340,12 +351,14 @@ int ha_tina::chain_append()
if (chain_alloced) if (chain_alloced)
{ {
/* Must cast since my_malloc unlike malloc doesn't have a void ptr */ /* Must cast since my_malloc unlike malloc doesn't have a void ptr */
if ((chain= (tina_set *)my_realloc((gptr)chain,chain_size,MYF(MY_WME))) == NULL) if ((chain= (tina_set *) my_realloc((gptr)chain,
chain_size, MYF(MY_WME))) == NULL)
return -1; return -1;
} }
else else
{ {
tina_set *ptr= (tina_set *)my_malloc(chain_size * sizeof(tina_set),MYF(MY_WME)); tina_set *ptr= (tina_set *) my_malloc(chain_size * sizeof(tina_set),
MYF(MY_WME));
memcpy(ptr, chain, DEFAULT_CHAIN_LENGTH * sizeof(tina_set)); memcpy(ptr, chain, DEFAULT_CHAIN_LENGTH * sizeof(tina_set));
chain= ptr; chain= ptr;
chain_alloced++; chain_alloced++;
...@@ -361,7 +374,7 @@ int ha_tina::chain_append() ...@@ -361,7 +374,7 @@ int ha_tina::chain_append()
} }
/* /*
Scans for a row. Scans for a row.
*/ */
int ha_tina::find_current_row(byte *buf) int ha_tina::find_current_row(byte *buf)
...@@ -371,7 +384,8 @@ int ha_tina::find_current_row(byte *buf) ...@@ -371,7 +384,8 @@ int ha_tina::find_current_row(byte *buf)
DBUG_ENTER("ha_tina::find_current_row"); DBUG_ENTER("ha_tina::find_current_row");
/* EOF should be counted as new line */ /* EOF should be counted as new line */
if ((end_ptr= find_eoln(share->mapped_file, current_position, share->file_stat.st_size)) == 0) if ((end_ptr= find_eoln(share->mapped_file, current_position,
share->file_stat.st_size)) == 0)
DBUG_RETURN(HA_ERR_END_OF_FILE); DBUG_RETURN(HA_ERR_END_OF_FILE);
for (Field **field=table->field ; *field ; field++) for (Field **field=table->field ; *field ; field++)
...@@ -380,14 +394,15 @@ int ha_tina::find_current_row(byte *buf) ...@@ -380,14 +394,15 @@ int ha_tina::find_current_row(byte *buf)
mapped_ptr++; // Increment past the first quote mapped_ptr++; // Increment past the first quote
for(;mapped_ptr != end_ptr; mapped_ptr++) for(;mapped_ptr != end_ptr; mapped_ptr++)
{ {
//Need to convert line feeds! // Need to convert line feeds!
if (*mapped_ptr == '"' && if (*mapped_ptr == '"' &&
(((mapped_ptr[1] == ',') && (mapped_ptr[2] == '"')) || (mapped_ptr == end_ptr -1 ))) (((mapped_ptr[1] == ',') && (mapped_ptr[2] == '"')) ||
(mapped_ptr == end_ptr -1 )))
{ {
mapped_ptr += 2; // Move past the , and the " mapped_ptr += 2; // Move past the , and the "
break; break;
} }
if (*mapped_ptr == '\\' && mapped_ptr != (end_ptr - 1)) if (*mapped_ptr == '\\' && mapped_ptr != (end_ptr - 1))
{ {
mapped_ptr++; mapped_ptr++;
if (*mapped_ptr == 'r') if (*mapped_ptr == 'r')
...@@ -401,7 +416,7 @@ int ha_tina::find_current_row(byte *buf) ...@@ -401,7 +416,7 @@ int ha_tina::find_current_row(byte *buf)
buffer.append('\\'); buffer.append('\\');
buffer.append(*mapped_ptr); buffer.append(*mapped_ptr);
} }
} }
else else
buffer.append(*mapped_ptr); buffer.append(*mapped_ptr);
} }
...@@ -429,7 +444,7 @@ const char **ha_tina::bas_ext() const ...@@ -429,7 +444,7 @@ const char **ha_tina::bas_ext() const
} }
/* /*
Open a database file. Keep in mind that tables are caches, so Open a database file. Keep in mind that tables are caches, so
this will not be called for every request. Any sort of positions this will not be called for every request. Any sort of positions
that need to be reset should be kept in the ::extra() call. that need to be reset should be kept in the ::extra() call.
...@@ -457,7 +472,7 @@ int ha_tina::close(void) ...@@ -457,7 +472,7 @@ int ha_tina::close(void)
DBUG_RETURN(free_share(share)); DBUG_RETURN(free_share(share));
} }
/* /*
This is an INSERT. At the moment this handler just seeks to the end This is an INSERT. At the moment this handler just seeks to the end
of the file and appends the data. In an error case it really should of the file and appends the data. In an error case it really should
just truncate to the original position (this is not done yet). just truncate to the original position (this is not done yet).
...@@ -477,22 +492,22 @@ int ha_tina::write_row(byte * buf) ...@@ -477,22 +492,22 @@ int ha_tina::write_row(byte * buf)
if (my_write(share->data_file, buffer.ptr(), size, MYF(MY_WME | MY_NABP))) if (my_write(share->data_file, buffer.ptr(), size, MYF(MY_WME | MY_NABP)))
DBUG_RETURN(-1); DBUG_RETURN(-1);
/* /*
Ok, this is means that we will be doing potentially bad things Ok, this is means that we will be doing potentially bad things
during a bulk insert on some OS'es. What we need is a cleanup during a bulk insert on some OS'es. What we need is a cleanup
call for ::write_row that would let us fix up everything after the bulk call for ::write_row that would let us fix up everything after the bulk
insert. The archive handler does this with an extra mutx call, which insert. The archive handler does this with an extra mutx call, which
might be a solution for this. might be a solution for this.
*/ */
if (get_mmap(share, 0) > 0) if (get_mmap(share, 0) > 0)
DBUG_RETURN(-1); DBUG_RETURN(-1);
DBUG_RETURN(0); DBUG_RETURN(0);
} }
/* /*
This is called for an update. This is called for an update.
Make sure you put in code to increment the auto increment, also Make sure you put in code to increment the auto increment, also
update any timestamp data. Currently auto increment is not being update any timestamp data. Currently auto increment is not being
fixed since autoincrements have yet to be added to this table handler. fixed since autoincrements have yet to be added to this table handler.
This will be called in a table scan right before the previous ::rnd_next() This will be called in a table scan right before the previous ::rnd_next()
...@@ -520,18 +535,20 @@ int ha_tina::update_row(const byte * old_data, byte * new_data) ...@@ -520,18 +535,20 @@ int ha_tina::update_row(const byte * old_data, byte * new_data)
} }
/* /*
Deletes a row. First the database will find the row, and then call this method. Deletes a row. First the database will find the row, and then call this
In the case of a table scan, the previous call to this will be the ::rnd_next() method. In the case of a table scan, the previous call to this will be
that found this row. the ::rnd_next() that found this row.
The exception to this is an ORDER BY. This will cause the table handler to walk The exception to this is an ORDER BY. This will cause the table handler
the table noting the positions of all rows that match a query. The table will to walk the table noting the positions of all rows that match a query.
then be deleted/positioned based on the ORDER (so RANDOM, DESC, ASC). The table will then be deleted/positioned based on the ORDER (so RANDOM,
DESC, ASC).
*/ */
int ha_tina::delete_row(const byte * buf) int ha_tina::delete_row(const byte * buf)
{ {
DBUG_ENTER("ha_tina::delete_row"); DBUG_ENTER("ha_tina::delete_row");
statistic_increment(table->in_use->status_var.ha_delete_count,&LOCK_status); statistic_increment(table->in_use->status_var.ha_delete_count,
&LOCK_status);
if (chain_append()) if (chain_append())
DBUG_RETURN(-1); DBUG_RETURN(-1);
...@@ -542,7 +559,7 @@ int ha_tina::delete_row(const byte * buf) ...@@ -542,7 +559,7 @@ int ha_tina::delete_row(const byte * buf)
} }
/* /*
Fill buf with value from key. Simply this is used for a single index read Fill buf with value from key. Simply this is used for a single index read
with a key. with a key.
*/ */
int ha_tina::index_read(byte * buf, const byte * key, int ha_tina::index_read(byte * buf, const byte * key,
...@@ -556,7 +573,7 @@ int ha_tina::index_read(byte * buf, const byte * key, ...@@ -556,7 +573,7 @@ int ha_tina::index_read(byte * buf, const byte * key,
} }
/* /*
Fill buf with value from key. Simply this is used for a single index read Fill buf with value from key. Simply this is used for a single index read
with a key. with a key.
Whatever the current key is we will use it. This is what will be in "index". Whatever the current key is we will use it. This is what will be in "index".
*/ */
...@@ -613,8 +630,8 @@ int ha_tina::index_last(byte * buf) ...@@ -613,8 +630,8 @@ int ha_tina::index_last(byte * buf)
DBUG_RETURN(HA_ADMIN_NOT_IMPLEMENTED); DBUG_RETURN(HA_ADMIN_NOT_IMPLEMENTED);
} }
/* /*
All table scans call this first. All table scans call this first.
The order of a table scan is: The order of a table scan is:
ha_tina::store_lock ha_tina::store_lock
...@@ -638,8 +655,8 @@ int ha_tina::index_last(byte * buf) ...@@ -638,8 +655,8 @@ int ha_tina::index_last(byte * buf)
ha_tina::extra ha_tina::extra
ENUM HA_EXTRA_RESET Reset database to after open ENUM HA_EXTRA_RESET Reset database to after open
Each call to ::rnd_next() represents a row returned in the can. When no more Each call to ::rnd_next() represents a row returned in the can. When no more
rows can be returned, rnd_next() returns a value of HA_ERR_END_OF_FILE. rows can be returned, rnd_next() returns a value of HA_ERR_END_OF_FILE.
The ::info() call is just for the optimizer. The ::info() call is just for the optimizer.
*/ */
...@@ -653,22 +670,26 @@ int ha_tina::rnd_init(bool scan) ...@@ -653,22 +670,26 @@ int ha_tina::rnd_init(bool scan)
chain_ptr= chain; chain_ptr= chain;
#ifdef HAVE_MADVISE #ifdef HAVE_MADVISE
if (scan) if (scan)
(void)madvise(share->mapped_file,share->file_stat.st_size,MADV_SEQUENTIAL); (void) madvise(share->mapped_file, share->file_stat.st_size,
MADV_SEQUENTIAL);
#endif #endif
DBUG_RETURN(0); DBUG_RETURN(0);
} }
/* /*
::rnd_next() does all the heavy lifting for a table scan. You will need to populate *buf ::rnd_next() does all the heavy lifting for a table scan. You will need to
with the correct field data. You can walk the field to determine at what position you populate *buf with the correct field data. You can walk the field to
should store the data (take a look at how ::find_current_row() works). The structure determine at what position you should store the data (take a look at how
is something like: ::find_current_row() works). The structure is something like:
0Foo Dog Friend 0Foo Dog Friend
The first offset is for the first attribute. All space before that is reserved for null count. The first offset is for the first attribute. All space before that is
Basically this works as a mask for which rows are nulled (compared to just empty). reserved for null count.
This table handler doesn't do nulls and does not know the difference between NULL and "". This Basically this works as a mask for which rows are nulled (compared to just
is ok since this table handler is for spreadsheets and they don't know about them either :) empty).
This table handler doesn't do nulls and does not know the difference between
NULL and "". This is ok since this table handler is for spreadsheets and
they don't know about them either :)
*/ */
int ha_tina::rnd_next(byte *buf) int ha_tina::rnd_next(byte *buf)
{ {
...@@ -678,9 +699,9 @@ int ha_tina::rnd_next(byte *buf) ...@@ -678,9 +699,9 @@ int ha_tina::rnd_next(byte *buf)
&LOCK_status); &LOCK_status);
current_position= next_position; current_position= next_position;
if (!share->mapped_file) if (!share->mapped_file)
DBUG_RETURN(HA_ERR_END_OF_FILE); DBUG_RETURN(HA_ERR_END_OF_FILE);
if (HA_ERR_END_OF_FILE == find_current_row(buf) ) if (HA_ERR_END_OF_FILE == find_current_row(buf) )
DBUG_RETURN(HA_ERR_END_OF_FILE); DBUG_RETURN(HA_ERR_END_OF_FILE);
records++; records++;
...@@ -689,11 +710,11 @@ int ha_tina::rnd_next(byte *buf) ...@@ -689,11 +710,11 @@ int ha_tina::rnd_next(byte *buf)
/* /*
In the case of an order by rows will need to be sorted. In the case of an order by rows will need to be sorted.
::position() is called after each call to ::rnd_next(), ::position() is called after each call to ::rnd_next(),
the data it stores is to a byte array. You can store this the data it stores is to a byte array. You can store this
data via my_store_ptr(). ref_length is a variable defined to the data via my_store_ptr(). ref_length is a variable defined to the
class that is the sizeof() of position being stored. In our case class that is the sizeof() of position being stored. In our case
its just a position. Look at the bdb code if you want to see a case its just a position. Look at the bdb code if you want to see a case
where something other then a number is stored. where something other then a number is stored.
*/ */
void ha_tina::position(const byte *record) void ha_tina::position(const byte *record)
...@@ -704,8 +725,8 @@ void ha_tina::position(const byte *record) ...@@ -704,8 +725,8 @@ void ha_tina::position(const byte *record)
} }
/* /*
Used to fetch a row from a posiion stored with ::position(). Used to fetch a row from a posiion stored with ::position().
my_get_ptr() retrieves the data for you. my_get_ptr() retrieves the data for you.
*/ */
...@@ -727,7 +748,7 @@ void ha_tina::info(uint flag) ...@@ -727,7 +748,7 @@ void ha_tina::info(uint flag)
{ {
DBUG_ENTER("ha_tina::info"); DBUG_ENTER("ha_tina::info");
/* This is a lie, but you don't want the optimizer to see zero or 1 */ /* This is a lie, but you don't want the optimizer to see zero or 1 */
if (records < 2) if (records < 2)
records= 2; records= 2;
DBUG_VOID_RETURN; DBUG_VOID_RETURN;
} }
...@@ -743,7 +764,7 @@ int ha_tina::extra(enum ha_extra_function operation) ...@@ -743,7 +764,7 @@ int ha_tina::extra(enum ha_extra_function operation)
DBUG_RETURN(0); DBUG_RETURN(0);
} }
/* /*
This is no longer used. This is no longer used.
*/ */
int ha_tina::reset(void) int ha_tina::reset(void)
...@@ -755,8 +776,10 @@ int ha_tina::reset(void) ...@@ -755,8 +776,10 @@ int ha_tina::reset(void)
/* /*
Called after deletes, inserts, and updates. This is where we clean up all of Called after each table scan. In particular after deletes,
the dead space we have collected while writing the file. and updates. In the last case we employ chain of deleted
slots to clean up all of the dead space we have collected while
performing deletes/updates.
*/ */
int ha_tina::rnd_end() int ha_tina::rnd_end()
{ {
...@@ -768,11 +791,11 @@ int ha_tina::rnd_end() ...@@ -768,11 +791,11 @@ int ha_tina::rnd_end()
tina_set *ptr; tina_set *ptr;
off_t length; off_t length;
/* /*
Setting up writable map, this will contain all of the data after the Setting up writable map, this will contain all of the data after the
get_mmap call that we have added to the file. get_mmap call that we have added to the file.
*/ */
if (get_mmap(share, 1) > 0) if (get_mmap(share, 1) > 0)
DBUG_RETURN(-1); DBUG_RETURN(-1);
length= share->file_stat.st_size; length= share->file_stat.st_size;
...@@ -781,7 +804,8 @@ int ha_tina::rnd_end() ...@@ -781,7 +804,8 @@ int ha_tina::rnd_end()
It also sorts so that we move the final blocks to the It also sorts so that we move the final blocks to the
beginning so that we move the smallest amount of data possible. beginning so that we move the smallest amount of data possible.
*/ */
qsort(chain, (size_t)(chain_ptr - chain), sizeof(tina_set), (qsort_cmp)sort_set); qsort(chain, (size_t)(chain_ptr - chain), sizeof(tina_set),
(qsort_cmp)sort_set);
for (ptr= chain; ptr < chain_ptr; ptr++) for (ptr= chain; ptr < chain_ptr; ptr++)
{ {
/* We peek a head to see if this is the last chain */ /* We peek a head to see if this is the last chain */
...@@ -789,7 +813,8 @@ int ha_tina::rnd_end() ...@@ -789,7 +813,8 @@ int ha_tina::rnd_end()
memmove(share->mapped_file + ptr->begin, share->mapped_file + ptr->end, memmove(share->mapped_file + ptr->begin, share->mapped_file + ptr->end,
length - (size_t)ptr->end); length - (size_t)ptr->end);
else else
memmove((caddr_t)share->mapped_file + ptr->begin, (caddr_t)share->mapped_file + ptr->end, memmove((caddr_t)share->mapped_file + ptr->begin,
(caddr_t)share->mapped_file + ptr->end,
(size_t)((ptr++)->begin - ptr->end)); (size_t)((ptr++)->begin - ptr->end));
length= length - (size_t)(ptr->end - ptr->begin); length= length - (size_t)(ptr->end - ptr->begin);
} }
...@@ -803,15 +828,15 @@ int ha_tina::rnd_end() ...@@ -803,15 +828,15 @@ int ha_tina::rnd_end()
/* We set it to null so that get_mmap() won't try to unmap it */ /* We set it to null so that get_mmap() won't try to unmap it */
share->mapped_file= NULL; share->mapped_file= NULL;
if (get_mmap(share, 0) > 0) if (get_mmap(share, 0) > 0)
DBUG_RETURN(-1); DBUG_RETURN(-1);
} }
DBUG_RETURN(0); DBUG_RETURN(0);
} }
/* /*
Truncate table and others of its ilk call this. Truncate table and others of its ilk call this.
*/ */
int ha_tina::delete_all_rows() int ha_tina::delete_all_rows()
{ {
...@@ -819,7 +844,7 @@ int ha_tina::delete_all_rows() ...@@ -819,7 +844,7 @@ int ha_tina::delete_all_rows()
int rc= my_chsize(share->data_file, 0, 0, MYF(MY_WME)); int rc= my_chsize(share->data_file, 0, 0, MYF(MY_WME));
if (get_mmap(share, 0) > 0) if (get_mmap(share, 0) > 0)
DBUG_RETURN(-1); DBUG_RETURN(-1);
DBUG_RETURN(rc); DBUG_RETURN(rc);
...@@ -834,7 +859,7 @@ int ha_tina::external_lock(THD *thd, int lock_type) ...@@ -834,7 +859,7 @@ int ha_tina::external_lock(THD *thd, int lock_type)
DBUG_RETURN(0); // No external locking DBUG_RETURN(0); // No external locking
} }
/* /*
Called by the database to lock the table. Keep in mind that this Called by the database to lock the table. Keep in mind that this
is an internal lock. is an internal lock.
*/ */
...@@ -848,33 +873,32 @@ THR_LOCK_DATA **ha_tina::store_lock(THD *thd, ...@@ -848,33 +873,32 @@ THR_LOCK_DATA **ha_tina::store_lock(THD *thd,
return to; return to;
} }
/* /*
Range optimizer calls this. Range optimizer calls this.
I need to update the information on this. I need to update the information on this.
*/ */
ha_rows ha_tina::records_in_range(int inx, ha_rows ha_tina::records_in_range(uint inx, key_range *min_key,
const byte *start_key,uint start_key_len, key_range *max_key)
enum ha_rkey_function start_search_flag,
const byte *end_key,uint end_key_len,
enum ha_rkey_function end_search_flag)
{ {
DBUG_ENTER("ha_tina::records_in_range "); DBUG_ENTER("ha_tina::records_in_range ");
DBUG_RETURN(records); // Good guess DBUG_RETURN(records); // Good guess
} }
/* /*
Create a table. You do not want to leave the table open after a call to Create a table. You do not want to leave the table open after a call to
this (the database will call ::open() if it needs to). this (the database will call ::open() if it needs to).
*/ */
int ha_tina::create(const char *name, TABLE *table_arg, HA_CREATE_INFO *create_info) int ha_tina::create(const char *name, TABLE *table_arg,
HA_CREATE_INFO *create_info)
{ {
char name_buff[FN_REFLEN]; char name_buff[FN_REFLEN];
File create_file; File create_file;
DBUG_ENTER("ha_tina::create"); DBUG_ENTER("ha_tina::create");
if ((create_file= my_create(fn_format(name_buff,name,"",".CSV",MY_REPLACE_EXT|MY_UNPACK_FILENAME),0, if ((create_file= my_create(fn_format(name_buff, name, "", ".CSV",
MY_REPLACE_EXT|MY_UNPACK_FILENAME),0,
O_RDWR | O_TRUNC,MYF(MY_WME))) < 0) O_RDWR | O_TRUNC,MYF(MY_WME))) < 0)
DBUG_RETURN(-1); DBUG_RETURN(-1);
......
sql/examples/ha_tina.h
View file @ 282855e9
...@@ -43,6 +43,11 @@ class ha_tina: public handler ...@@ -43,6 +43,11 @@ class ha_tina: public handler
off_t next_position; /* Next position in the file scan */ off_t next_position; /* Next position in the file scan */
byte byte_buffer[IO_SIZE]; byte byte_buffer[IO_SIZE];
String buffer; String buffer;
/*
The chain contains "holes" in the file, occured because of
deletes/updates. It is used in rnd_end() to get rid of them
in the end of the query.
*/
tina_set chain_buffer[DEFAULT_CHAIN_LENGTH]; tina_set chain_buffer[DEFAULT_CHAIN_LENGTH];
tina_set *chain; tina_set *chain;
tina_set *chain_ptr; tina_set *chain_ptr;
...@@ -78,7 +83,11 @@ class ha_tina: public handler ...@@ -78,7 +83,11 @@ class ha_tina: public handler
*/ */
virtual double scan_time() { return (double) (records+deleted) / 20.0+10; } virtual double scan_time() { return (double) (records+deleted) / 20.0+10; }
/* The next method will never be called */ /* The next method will never be called */
virtual double read_time(ha_rows rows) { DBUG_ASSERT(0); return((double) rows / 20.0+1); } virtual double read_time(uint index, uint ranges, ha_rows rows)
{
DBUG_ASSERT(0);
return((double) rows / 20.0+1);
}
virtual bool fast_key_read() { return 1;} virtual bool fast_key_read() { return 1;}
/* /*
TODO: return actual upper bound of number of records in the table. TODO: return actual upper bound of number of records in the table.
...@@ -110,10 +119,8 @@ class ha_tina: public handler ...@@ -110,10 +119,8 @@ class ha_tina: public handler
int reset(void); int reset(void);
int external_lock(THD *thd, int lock_type); int external_lock(THD *thd, int lock_type);
int delete_all_rows(void); int delete_all_rows(void);
ha_rows records_in_range(int inx, const byte *start_key,uint start_key_len, ha_rows records_in_range(uint inx, key_range *min_key,
enum ha_rkey_function start_search_flag, key_range *max_key);
const byte *end_key,uint end_key_len,
enum ha_rkey_function end_search_flag);
// int delete_table(const char *from); // int delete_table(const char *from);
// int rename_table(const char * from, const char * to); // int rename_table(const char * from, const char * to);
int create(const char *name, TABLE *form, HA_CREATE_INFO *create_info); int create(const char *name, TABLE *form, HA_CREATE_INFO *create_info);
......
sql/mysql_priv.h
View file @ 282855e9
...@@ -544,6 +544,7 @@ struct Query_cache_query_flags ...@@ -544,6 +544,7 @@ struct Query_cache_query_flags
unsigned int client_long_flag:1; unsigned int client_long_flag:1;
unsigned int client_protocol_41:1; unsigned int client_protocol_41:1;
unsigned int more_results_exists:1; unsigned int more_results_exists:1;
unsigned int pkt_nr;
uint character_set_client_num; uint character_set_client_num;
uint character_set_results_num; uint character_set_results_num;
uint collation_connection_num; uint collation_connection_num;
......
sql/sql_cache.cc
View file @ 282855e9
...@@ -801,6 +801,7 @@ void Query_cache::store_query(THD *thd, TABLE_LIST *tables_used) ...@@ -801,6 +801,7 @@ void Query_cache::store_query(THD *thd, TABLE_LIST *tables_used)
CLIENT_PROTOCOL_41); CLIENT_PROTOCOL_41);
flags.more_results_exists= test(thd->server_status & flags.more_results_exists= test(thd->server_status &
SERVER_MORE_RESULTS_EXISTS); SERVER_MORE_RESULTS_EXISTS);
flags.pkt_nr= net->pkt_nr;
flags.character_set_client_num= flags.character_set_client_num=
thd->variables.character_set_client->number; thd->variables.character_set_client->number;
flags.character_set_results_num= flags.character_set_results_num=
...@@ -814,12 +815,13 @@ void Query_cache::store_query(THD *thd, TABLE_LIST *tables_used) ...@@ -814,12 +815,13 @@ void Query_cache::store_query(THD *thd, TABLE_LIST *tables_used)
flags.sql_mode= thd->variables.sql_mode; flags.sql_mode= thd->variables.sql_mode;
flags.max_sort_length= thd->variables.max_sort_length; flags.max_sort_length= thd->variables.max_sort_length;
flags.group_concat_max_len= thd->variables.group_concat_max_len; flags.group_concat_max_len= thd->variables.group_concat_max_len;
DBUG_PRINT("qcache", ("long %d, 4.1: %d, more results %d, \ DBUG_PRINT("qcache", ("long %d, 4.1: %d, more results %d, pkt_nr: %d, \
CS client: %u, CS result: %u, CS conn: %u, limit: %lu, TZ: 0x%lx, \ CS client: %u, CS result: %u, CS conn: %u, limit: %lu, TZ: 0x%lx, \
sql mode: 0x%lx, sort len: %lu, conncat len: %lu", sql mode: 0x%lx, sort len: %lu, conncat len: %lu",
(int)flags.client_long_flag, (int)flags.client_long_flag,
(int)flags.client_protocol_41, (int)flags.client_protocol_41,
(int)flags.more_results_exists, (int)flags.more_results_exists,
flags.pkt_nr,
flags.character_set_client_num, flags.character_set_client_num,
flags.character_set_results_num, flags.character_set_results_num,
flags.collation_connection_num, flags.collation_connection_num,
...@@ -1019,6 +1021,7 @@ Query_cache::send_result_to_client(THD *thd, char *sql, uint query_length) ...@@ -1019,6 +1021,7 @@ Query_cache::send_result_to_client(THD *thd, char *sql, uint query_length)
CLIENT_PROTOCOL_41); CLIENT_PROTOCOL_41);
flags.more_results_exists= test(thd->server_status & flags.more_results_exists= test(thd->server_status &
SERVER_MORE_RESULTS_EXISTS); SERVER_MORE_RESULTS_EXISTS);
flags.pkt_nr= thd->net.pkt_nr;
flags.character_set_client_num= thd->variables.character_set_client->number; flags.character_set_client_num= thd->variables.character_set_client->number;
flags.character_set_results_num= flags.character_set_results_num=
(thd->variables.character_set_results ? (thd->variables.character_set_results ?
...@@ -1030,12 +1033,13 @@ Query_cache::send_result_to_client(THD *thd, char *sql, uint query_length) ...@@ -1030,12 +1033,13 @@ Query_cache::send_result_to_client(THD *thd, char *sql, uint query_length)
flags.sql_mode= thd->variables.sql_mode; flags.sql_mode= thd->variables.sql_mode;
flags.max_sort_length= thd->variables.max_sort_length; flags.max_sort_length= thd->variables.max_sort_length;
flags.group_concat_max_len= thd->variables.group_concat_max_len; flags.group_concat_max_len= thd->variables.group_concat_max_len;
DBUG_PRINT("qcache", ("long %d, 4.1: %d, more results %d, \ DBUG_PRINT("qcache", ("long %d, 4.1: %d, more results %d, pkt_nr: %d, \
CS client: %u, CS result: %u, CS conn: %u, limit: %lu, TZ: 0x%lx, \ CS client: %u, CS result: %u, CS conn: %u, limit: %lu, TZ: 0x%lx, \
sql mode: 0x%lx, sort len: %lu, conncat len: %lu", sql mode: 0x%lx, sort len: %lu, conncat len: %lu",
(int)flags.client_long_flag, (int)flags.client_long_flag,
(int)flags.client_protocol_41, (int)flags.client_protocol_41,
(int)flags.more_results_exists, (int)flags.more_results_exists,
flags.pkt_nr,
flags.character_set_client_num, flags.character_set_client_num,
flags.character_set_results_num, flags.character_set_results_num,
flags.collation_connection_num, flags.collation_connection_num,
......
sql/sql_db.cc
View file @ 282855e9
...@@ -440,7 +440,8 @@ bool mysql_create_db(THD *thd, char *db, HA_CREATE_INFO *create_info, ...@@ -440,7 +440,8 @@ bool mysql_create_db(THD *thd, char *db, HA_CREATE_INFO *create_info,
push_warning_printf(thd, MYSQL_ERROR::WARN_LEVEL_NOTE, push_warning_printf(thd, MYSQL_ERROR::WARN_LEVEL_NOTE,
ER_DB_CREATE_EXISTS, ER(ER_DB_CREATE_EXISTS), db); ER_DB_CREATE_EXISTS, ER(ER_DB_CREATE_EXISTS), db);
error= 0; error= 0;
send_ok(thd); if (!silent)
send_ok(thd);
goto exit; goto exit;
} }
else else
......
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